Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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A Quartz Tube Based Ag/Ag+ Reference Electrode with a Tungsten Tip Junction for an Electrochemical Study in Molten Salts

  • Park, Y.J. (Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute) ;
  • Jung, Y.J. (Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute) ;
  • Min, S.K. (Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute) ;
  • Cho, Y.H. (Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute) ;
  • Im, H.J. (Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute) ;
  • Yeon, J.W. (Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute) ;
  • Song, K. (Nuclear Chemistry Research Division, Korea Atomic Energy Research Institute)
  • Published : 2009.01.20
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Abstract

A newly designed Ag/$Ag^+$ reference electrode in a quartz tube with a tungsten tip junction (W-tip-Quartz- REF) was fabricated and its electrochemical performance was compared with a conventional Pyrex tube-based Ag/$Ag^+$ reference electrode (Py-REF). The results of the electrochemical potential measurements with the W-tip-Quartz- REF and the Py-REF in the LiCl-KCl eutectic melts for a wide temperature range proved that the oxide layer on the surface of the tungsten metal tip provided a high ionic conduction. Stability of our newly designed W-tip- Quartz-REF was tested by measuring a junction potential for 12 hours at 700${^{\circ}C}$. The results of the cyclic voltammetric measurement indicated that the Ag/$Ag^+$ reference electrode in the quartz tube with a tungsten tip junction can provide a good performance for a wide temperature range.

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  2. Review—Electrochemical Measurements in Molten Salt Systems: A Guide and Perspective vol.166, pp.13, 2009, https://doi.org/10.1149/2.0991913jes